They can use the potty but always ask for a pull-up to poop

A child who asks for a pull-up to poop is often protecting the conditions that feel safest for letting go. The loop that keeps it going is the safe-container loop: the pull-up works, so the body keeps choosing it. Do not turn the pull-up into the enemy. Use it as the bridge. Move one condition at a time: where it happens, how they sit, how close the routine gets to the toilet.
When the time is right, say this...

“Your body knows poop is coming. Right now the pull-up helps you feel safe. We are going to help poop move closer to the potty, one small step at a time.”

If they ask for the pull-up: “Yes, and today the pull-up happens in the bathroom.” Keep it calm. The goal is not to make the pull-up wrong. The goal is to change where and how it happens.
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Do this: Move one part of the routine, not all of it. If they usually poop in a pull-up in another room, move the pull-up poop to the bathroom first. If that is manageable, try sitting on the closed toilet with the pull-up. Later, sitting on the toilet with the pull-up. Later still, changing the pull-up position or loosening it. Each step should be small enough that your child can still poop.

Skip this: Taking the pull-up away suddenly if your child is likely to withhold. Shaming the pull-up as babyish. Saying, “You’re too old for this.” Turning the bathroom into a standoff. Celebrating so intensely when progress happens that the next attempt feels like a performance.

Expect this: Your child may need the same step for a while. That does not mean the plan is failing. If they are pooping regularly and the routine is slowly moving closer to the toilet, the body is learning without panic.

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What's probably happening underneath

Your child knows how to use the potty. That is what makes this so confusing. They can pee there. They may wear underwear all day. They may understand the bathroom routine. They may even sit on the toilet without fear. But when they need to poop, they ask for a pull-up.

And often, the request is very specific. They want the pull-up. They want privacy. They may want to stand in a certain corner, behind the couch, in their room, or near you but not on the toilet. They are not confused about whether poop is coming. In some ways, they are very aware of it. They just do not want the toilet involved. This is usually not laziness. It is a child preserving the conditions that currently feel safest for letting go.

Pooping is a vulnerable body process. It takes time. It can feel strange. It can carry a fear of splash, falling in, pain, smell, mess, or the feeling that something is leaving the body. A pull-up can feel familiar, contained, and private. The toilet can feel too exposed or too final.

The hard part is that the pull-up works. Your child poops. The body gets relief. The parent avoids withholding. Everyone gets through it. So the pull-up becomes the bridge and the barrier at the same time.

The goal is not to snatch the pull-up away and hope the toilet wins. The goal is to move the safe conditions closer to the bathroom, one step at a time.

Probably normal if... your child pees on the potty, asks for a pull-up to poop, and poops regularly without pain. They may be attached to a specific position or location, but the body is not withholding for days and the pattern is not becoming more distressed.

Worth watching if... your child becomes panicked when the pull-up is not available, holds poop to avoid the toilet, has frequent accidents, or the request for a pull-up is becoming more rigid over time. Also watch if the conversation around poop has become tense, secretive, or full of bargaining.

Get outside help if... your child is constipated, poops only every few days, has painful or very large stools, has blood in stool, or shows signs of withholding. Get medical guidance before removing the pull-up if it is currently the only thing preventing constipation or pain.

What might be making things harder

The pull-up can become hard to leave behind because it solves the body problem so well. That is the safe-container loop.

The child feels poop coming. The toilet feels too exposed, too scary, too uncomfortable, or too uncertain. The pull-up feels known. They ask for it. They poop. Their body feels better. The parent feels relieved because withholding did not happen. The system worked.

The next time, the body chooses the same system. This is not irrational. From the child’s point of view, the pull-up is the place where poop works. The toilet is the place where adults want poop to work.

If the parent responds by removing the pull-up completely, the child may not suddenly transfer the skill. They may hold. Holding creates pressure and pain. Pain makes the toilet feel more dangerous. Now the pull-up is not only preferred. It feels necessary.

The second thing that keeps it going is treating the pull-up as the enemy. The pull-up may actually be the bridge. It tells you your child can read their body, ask for help, and let poop out under certain conditions. Those are useful skills. The next move is to preserve the safety while changing one condition at a time.

Not: “No more pull-ups.”

More like: “Pull-up in the bathroom.”

Then: “Pull-up while sitting.”

Then: “Pull-up on the toilet.”

Then: “We make a small opening.”

The body often needs proof that the new version still works before it gives up the old one.

Need more personal support?
Use the Mabel App.

When the pull-up has become the only way poop feels possible, Mabel can build something specific to your child: a small-step poop plan, a script that keeps the pressure low, or a story that helps the bathroom feel like part of the safe routine.